16172928 has 96 divisors (see below), whose sum is σ = 47338200. Its totient is φ = 5299200.

The previous prime is 16172927. The next prime is 16172951. The reversal of 16172928 is 82927161.

16172928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16172892 and 16172901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16172927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116283 + ... + 116421.

Almost surely, 2^16172928 is an apocalyptic number.

16172928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16172928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23669100).

16172928 is an abundant number, since it is smaller than the sum of its proper divisors (31165272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16172928 is a wasteful number, since it uses less digits than its factorization.

16172928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 245 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 16172928 is about 4021.5579070803. The cubic root of 16172928 is about 252.8887740350. Note that the first 3 decimals are identical.

The spelling of 16172928 in words is "sixteen million, one hundred seventy-two thousand, nine hundred twenty-eight".